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    Home » All Recipes » Adults Only! (Boozy)

    How to Stabilize and Back Sweeten Wine

    Published: Nov 9, 2020

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    Wine Making at Home, Part 4: How to Stabilize and Back Sweeten Wine

    Maple syrup, a bag of sugar, and a jar of honey are pictured with a two small plastic bottles

    When making wine, cider, or mead at home, you want to know how to stabilize and back sweeten wine. Here's everything you need to know!

    Getting Starting With Home Wine Making

    This is the 4th post in our series of how to make wine at home, and will teach you how to finish your wine, before bottling.

    Our first three posts in the series are below:

    - Wine Making At Home, Part 1: Why?

    - Wine Making at Home, Part 2: Equipment to Get Started

    - Wine Making at Home, Part 3: The Brewing Process.

    Just a small handful of entries, and you'll be good to go!

    Maple syrup, a bag of sugar, and a jar of honey are pictured with a large glass bottle with deep amber coloured wine in it, as well as two small plastic bottles in front of it. These are the items needed to stabilize and back sweeten wine.

    What Does It Mean To Stabilize And Back Sweeten Wine?

    Stabilizing Wine

    Stabilizing a wine is when you add a chemical to prevent fermentation from starting up again.

    Stabilizing is an important step to take before back sweetening your wine, as sweetening your wine is likely to restart fermentation.

    Sugar feeds yeast, after all. Putting more sugar in a carboy of still wine is like shaking a box of cat treats in a house with sleeping cats. They may LOOK dormant, but they will very quickly go active at the promise of treats!

    While this may be desirable at times - maybe you’re specifically aiming for a higher ABV - eventually you’re going to want to cut the yeast off, for good.

    Stabilizing your wine is something that’s usually a good idea to do, whether or not you’re back sweetening it, as a kind of safety precaution / insurance for your wine.

    You see, sometimes when you bottle your wine, you disturb residual yeast enough to “wake it up” again.

    We’ve had wines that we’ve racked off sediment several times, til is was visibly “clean”. It can sit still - no fermentation activity at all - for months... That reactivated upon bottling.

    Sometimes - if you’re keeping them in kegs, or in beer bottles - this isn’t a problem. You’ll end up with a carbonated wine, cider, or mead - they can be fun!

    However, regular wine bottles aren’t made to sustain the pressures of a fermenting wine, and can explode.

    Not only does this make a huge mess, you’ll lose the wine you’ve been patiently waiting on.

    While we haven’t had a bottle explode, ourselves - knock on wood - our first batch of Mint Wine gave us a bit of a scare.

    We hadn’t stabilized it (whoops!), and it carbonated in the regular bottles we’d racked them to. The “Zorks” corks we were using all started splitting.

    So, we went out of our way to use the wine sooner rather than later, and considered it a lesson learned!

    When Do You Stabilize Wine?

    While it sounds almost redundant, you want to wait until the wine has stabilized, before you stabilize.

    What I mean by that is, you don’t stabilize an active wine.

    Let it work its way through active fermentation, rack it a few times, let it clarify (Haze / cloudiness can be suspended yeast - wait it out!), and let it rest.

    When it’s gone a month or more with NO activity - no bubbles, no new sediment, etc - that’s when we tend to stabilize it.

    A glass carboy full of amber wine. Sediment can be seen at the bottom.

    This is a wine that is still actively fermenting, and is not ready to be stabilized.

    Stabilizing an Active Wine

    A bit more on “You don’t stabilize an active wine”:

    Stabilizers will not stop an actively fermenting wine, they can only slow it down a little - and temporarily.

    Stabilizers don’t kill off yeast, and don’t stop active fermentation from happening. Stabilizers coat the yeast cells to prevent them from multiplying.

    Theoretically, adding stabilizers to active fermentation may shorten the active fermentation time eventually. Again - in theory. Theoretically the active cells will stop reproducing, and when they die off, you’re done.

    In practice... most people don’t notice a difference. So, just wait until fermentation is done!

    Maple syrup, a bag of sugar, and a jar of honey are pictured with a large glass bottle with deep amber coloured wine in it. These are the items needed to back sweeten wine.

    Back Sweetening Wine

    Back Sweetening Wine is simply adding a sweetener to a wine that has finished fermenting and has been stabilized.

    How much you add will vary wildly based on what kind of wine you’re working with, how dry it got, and what you’d like the final wine to taste like.

    You can add very small amounts to simply take the edge off an *incredibly* dry wine, leaving it as a dry wine.

    You can add a reasonable amount to bring out the flavour in certain wines - this is especially important with lighter-coloured non-grape wines, in our experience.

    Many fruit based wines really don’t taste like anything, unless you add a bit of sweetener.

    Add a bit of sugar, and the bland, flavourless wine suddenly tastes like strawberries, peaches, watermelon, or whatever fruit it was that it started with!

    Finally, you can add a fair amount of sweetener to create a very sweet dessert wine.

    Or, you can always bottle some dry, add a bit of sweetener to the carboy, bottle some semi-sweet, add more sweetener, and bottle some as a dessert wine. You can get several “different” wines off one batch, this way!

    It’s all up to you, what you’re looking for!

    Maple syrup, a bag of sugar, and a jar of honey are pictured with a large glass bottle with deep amber coloured wine in it. These are the items needed to back sweeten wine.

    When Do You Back Sweeten Wine

    You can back sweeten wine after it’s been stabilized, and after you’ve waited the required time after you’ve added the stabilizing component(s).

    More on that in a bit!

    How to Stabilize Wine

    First and foremost: While I’ll give a general idea of how this is done, you should always consult the packaging on the stabilizer you are using.

    Different stabilizers, different brands, and different strengths can require slightly different handling.

    Secondly: Use the least amount of stabilizer that you can for the quantity of wine you’re stabilizing. Don’t throw extra in “to be extra sure” or anything!

    Anyway!

    A white bucket is shown partially offscrean. A clear plastic tube full of red liquid descends from offscreen, ending in a large glass carboy. There is a tall, narrow tube full of red wine next to it.

    - Sanitize a clean carboy, the same size as the one your still wine is currently sitting in. Also, sanitize your siphon, siphon tubing, etc.

    - Rack the wine over one final time.

    - Add your choice of stabilizer - following the directions for it - swirl the carboy a little to mix it in.

    - Allow the wine to sit for at least 12 hours (ideally severally days) before doing anything else (back sweetening, bottling)

    What is Potassium Sorbate?

    A small plastic bottle with white powder, labeled "Potassium Sorbate"

    Potassium Sorbate is a chemical that is added to foods to preserve the “life” of them. It does this by blocking the growth of certain microbes - mold/fungus, and yeast.

    It’s how it’s possible to, for example, buy shelf-stable juice. Without the addition of stabilizers, most juices would be either wine or vinegar by the time they sold.

    As I mentioned in my Hard Apple Cider post, Potassium Sorbate - and related preservatives - are why it’s so important to buy cider *without* them, if you’re looking to ferment it.

    What is Potassium Metabisulfite?

    A small plastic bottle with white tablets, labeled "Campden Tablets"

    Potassium Metabisulfite - Commonly sold as Campden Tablets - is generally used in conjunction with Potassium Sorbate when it comes to stabilizing wines.

    It roughs up the environment and “stuns” the yeast, whereas the Potassium Sorbate prevents the yeast from reproducing.

    Basically, Potassium Metabisulfite holds the yeast down while the Potassium Sorbate castrates it.

    ... sorry.

    Maple syrup, a bag of sugar, and a jar of honey.

    Preparing to Back Sweeten Wine

    Choice of Sweetener

    Before back sweetening your wine, you’re going to want to decide HOW you’re going to sweeten it.

    There are a few options out there.

    Keeping it Simple

    Obviously, you can sweeten with the same sweetener that you started with. For many of our wines, this would mean granulated sugar.

    If you’re making a mead, this would mean honey.

    If you’re making a cider, you may want to use brown sugar, molasses, maple syrup, or even a combination.

    Fruit Juice

    Some people like to sweeten wine with fruit juice, or with frozen fruit juice concentrate. This is especially seen as the “proper” way to do it when it comes to grape wine.

    We don’t tend to go this way, ourselves, though I can see the attraction - fruit juice will boost the flavour in a way that watered-down sugar will not.

    BUT it also means having the juice you want on hand, and we’re not usually about that. Sugar is quick and easy, and - to be honest - we’re a bit lazy when it comes to such things.

    If you are adding juice, two suggestions:

    - Use the same juice you started with, or at least the same time. Apple juice in apple cider, grape juice in grape wine, etc.

    - Make sure that any naturally occurring yeast is taken care of in your juice, before adding it to your wine. This could mean either using juice that comes stabilized, or simmering it for a bit to kill off any residual yeast.

    A very close up view of a dark purple wine, in a glass.

    Glycerine

    Glycerine is sold at home brew supply stores as an un-fermentable sweetener.

    To be honest, we’ve never gone that way, and likely never will.

    First of all, see the aforementioned laziness.

    Secondly... I get that it’s supposed to be completely neutral in terms of flavour and smell, and I get that it’s already used in foods I eat.

    ... but something about adding glycerine to something I’m making *to eat or drink* kinda squicks me out. I see “glycerine”, I think “Soap”. It’s just not an appetizing option to me, based on that association.

    Yes, I realize I’m probably being ridiculous.

    Wine Conditioner

    Finally, “Wine Conditioner” is another option that is sometimes available, depending on your access to homebrew supplies.

    This is a product that is both sweetener and stabilizer in one, so you can actually skip the stabilizing... sort of.

    This type of product comes with a caveat, though: If you’re using less than a recommended amount of the conditioner in a prescribed amount of wine, you need to add additional stabilizer along with it.

    If you go this way, you’ll want to read the directions on your particular brand of conditioner, and follow them explicitly.

    Maple syrup, a bag of sugar, and a jar of honey are pictured with a large glass bottle with deep amber coloured wine in it.

    How to Back Sweeten Wine, Cider, or Mead

    Now that I’ve written about 2000 words as a lead up, the actually back sweetening is actually incredibly easy.

    Make Your Syrup

    - First, mix a thick syrup with your choice of granulated or brown sugar, molasses, honey, maple syrup, or a mixture thereof. I like to go 2 parts of sweetener, to 1 part of water.

    - Boil your syrup for a few minutes. You want your sweetener to dissolve, and you also want to sterilize it AND the water.

    Sweeten your Wine, Cider, or Mead

    How you do this is up to you, and will depend on logistics - how much wine do you have to sweeten, are you sweetening all of it or just part of it, etc.

    Also: Do you want to wing it (we do!), or be more meticulous with it?

    Wing It

    Have the amount of wine you’re looking to sweeten in a single, sanitized vessel - usually the carboy you stabilized it in.

    Use a sanitized Wine Thief, turkey baster, or siphon to get a bit of the wine in a glass.

    Taste the wine, decide if you’re looking at needing a lot of syrup, or just a bit.

    Eyeball it and add some syrup to the carboy. You’ll want to underestimate, if anything. You can always add more syrup, but you can’t *un* sweeten a wine you went overboard with!

    Swirl the jug to mix it in well.

    Get a bit more wine in a glass, test it out. Add more sugar if needed, repeat as necessary - just be sure to keep everything sanitary!

    Maple syrup, a bag of sugar, and a jar of honey are pictured behind a measuring glass full of water.

    More Meticulous

    - Know how much wine you have to sweeten.

    - Using sanitized equipment, remove a measured amount - say 1 cup, for the sake of easy math - to a clean vessel.

    - Add a measured amount of syrup to your measured wine, say 1 Tbsp. Taste, and add more syrup if necessary - keeping track of how much you add.

    - Multiply the final amount of syrup you added to your glass, by the amount of wine you’re sweetening.

    Example: If you liked the glass at 2 tablespoon of syrup, and you have 16 cups of wine left to sweeten, you’ll add 32 tablespoon - or about 2 cups - to the carboy.

    - Add measured amount of syrup to the carboy, swirl well to combine.

    Close up photo of a glass of brilliantly red cranberry wine, in front of a white background.

    Carbonating Back Sweetened Wine or Cider

    So, after really driving home the point that you have to stabilize a wine before back sweetening it, let’s talk a moment about the times when you DON’T necessarily want to kill off all the yeast:

    Carbonated wines, meads, and ciders!

    This is something you’ll want to plan out *before* you stabilize, as stabilizing renders you with only one of the two options for carbonation.

    Naturally Carbonated Cider, Wine, Mead

    - Skip stabilizing the wine.

    - Sweeten the wine slightly more than you want, as some will ferment.

    - Bottle into glassware that is made to withstand pressurized conditions. Usually, we’ll use beer bottles / caps for this, but a champagne setup is always an option as well - check with your local homebrew supply store to see what their options are.

    - Allow to age at least a month or two – residual yeast will ferment the added sugar, carbonating the wine.

    Force Carbonated Cider, Wine, Mead

    -Stabilize the wine

    - Rack the wine into a keg and force carbonate it, if you have the set up for that.

    Aging your Wine

    While aging wine isn’t specifically a part of stabilizing or back sweetening it, I wanted to address it here, as it is an adjacent issue, IMHO.

    When you’re back sweetening wine, the sweetener taste - whether granulated sugar, brown sugar, or honey - can sometimes be discernable right off the bat.

    Bottling and aging the wine for at least a few months lets that all mellow out and refine itself into a nicer beverage, in our experience.

    Bottles of Cherry Wine lined up

    A 5 gallon batch of cherry wine, freshly bottled

    Home Brewing Recipes!

    Looking to get started with home brewing? Here are a few of my other wine, cider, and mead recipes:

    Wine Recipes

    Banana Wine Recipe
    Blackberry Wine Recipe
    Blackcurrant Wine Recipe
    Blueberry Wine Recipe
    Cherry Wine Recipe
    Cranberry Clementine Christmas Wine Recipe
    Cranberry Wine Recipe
    Faux Lingonberry Wine
    Lychee Wine Recipe
    Mango Strawberry Wine Recipe
    Mango Wine Recipe
    Mint Wine Recipe
    Lychee Wine Recipe
    Partridgeberry Wine Recipe
    Passionfruit Wine Recipe
    Peach Wine Recipe
    Stone Fruit Wine Recipe
    Strawberry Wine Recipe
    Ube Wine Recipe
    Watermelon Wine Recipe

    Mead Recipes

    Black Cherry Mead Recipe
    Blueberry-Clementine Mead Recipe
    Blueberry Mead Recipe
    Clementine Mead Recipe
    Pumpkin Mead Recipe
    Wildflower Mead Recipe

    Cider & Miscellaneous Homebrew Recipes

    Hard Apple Cider Recipe
    Home Brew Hard Iced Tea Recipe
    Maple Hard Apple Cider Recipe

    Close up photo of a single glass of pale pink wine

    Share the Love!

    Before you drink up, be sure to take some pics of your handiwork! If you Instagram it, be sure to tag me - @CelebrationGenerationCA - or post it to My Facebook Page - so I can cheer you on!

    Also, be sure to subscribe to my free monthly email newsletter, so you never miss out on any of my nonsense.

    Well, the published nonsense, anyway!

    Maple syrup, a bag of sugar, and a jar of honey are pictured with a large glass bottle with deep amber coloured wine in it, as well as two small plastic bottles in front of it. These are the items needed to stabilize and back sweeten wine.
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    5 from 1 vote

    How to Stabilize and Back Sweeten Wine

    When making wine, cider, or mead at home, you want to know how to stabilize and back sweeten wine. Here's everything you need to know!
    Prep Time5 mins
    Cook Time15 mins
    Total Time20 mins
    Author: Marie Porter
    Cost: 10

    Equipment

    Carboys
    Siphon
    Wine Thief

    Ingredients

    Stabilizing Wine Ingredients

    • Potassium Sorbate
    • Potassium Metabisulfate

    Back Sweetening Wine Ingredients

    • Choice of sugar: White, Brown, Honey, Maple syrup
    • or
    • Juice optional
    • or
    • Glycerine optional
    • or
    • Wine Conditioner optional

    Instructions

    Stabilizing Wine:

    • Consult the packaging on your stabilizers to figure out how much to use, and how it wants you to add them.
      Use the least amount of stabilizer that you can for the quantity of wine you’re stabilizing. Don’t throw extra in “to be extra sure” or anything!
    • Sanitize a clean carboy, the same size as the one your still wine is currently sitting in. Also, sanitize your siphon, siphon tubing, etc.
    • Rack the wine over one final time.
    • Add your stabilizer - following the directions for it - swirl the carboy a little to mix it in.
    • Allow the wine to sit for at least 12 hours (ideally severally days) before doing anything else (back sweetening, bottling)

    Back Sweetening Wine - Wing It:

    • First, mix a thick syrup with your choice of granulated or brown sugar, molasses, honey, maple syrup, or a mixture thereof. I like to go 2 parts of sweetener, to 1 part of water.
    • Boil your syrup for a few minutes. You want your sweetener to dissolve, and you also want to sterilize it AND the water.
    • Have the amount of wine you’re looking to sweeten in a single, sanitized vessel - usually the carboy you stabilized it in.
    • Use a sanitized wine thief, turkey baster, or siphon to get a bit of the wine in a glass.
    • Taste the wine, decide if you’re looking at needing a lot of syrup, or just a bit.
    • Eyeball it and add some syrup to the carboy. You’ll want to underestimate, if anything. You can always add more syrup, but you can’t *un* sweeten a wine you went overboard with!
    • Swirl the jug to mix it in well.
    • Get a bit more wine in a glass, test it out. Add more sugar if needed, repeat as necessary - just be sure to keep everything sanitary!

    Back Sweetening Wine - Meticulous

    • First, mix a thick syrup with your choice of granulated or brown sugar, molasses, honey, maple syrup, or a mixture thereof. I like to go 2 parts of sweetener, to 1 part of water.
    • Boil your syrup for a few minutes. You want your sweetener to dissolve, and you also want to sterilize it AND the water.
    • Know how much wine you have to sweeten.
    • Using sanitized equipment, remove a measured amount - say 1 cup, for the sake of easy math - to a clean vessel.
    • Add a measured amount of syrup to your measured wine, say 1 Tbsp. Taste, and add more syrup if necessary - keeping track of how much you add.
    • Multiply the final amount of syrup you added to your glass, by the amount of wine you’re sweetening.
    • Example: If you liked the glass at 2 tablespoon of syrup, and you have 16 cups of wine left to sweeten, you’ll add 32 tablespoon - or about 2 cups - to the carboy.
    • Add measured amount of syrup to the carboy, swirl well to combine.

    Related posts:

    A close up view of a wine glass with with a deep red wine. There are cranberries and orange peels at the base of the glass, against a white background. Christmas Wine A glass of blueberry wine in front of a pint of fresh blueberries. Blueberry Wine Recipe [Fresh or Frozen] Blackberry Wine Recipe Blackberry Wine Recipe [Fresh or Frozen] A glass of pale peach coloured wine, with 2 fresh peaches at the base of the glass. Homemade Peach Wine Recipe
    « Spumoni Cake
    Apple Blueberry Muffins »

    Reader Interactions

    Comments

    1. Paul Carpenter

      January 11, 2023 at 5:56 am

      I loved reading this thanks. Your writing is so so easy to read and flows so conversationally and wit honesty.
      Paul

      Reply

    Trackbacks

    1. Pineapple Wine says:
      February 22, 2021 at 3:14 am

      […] You’ll need additional winemaking additives if you choose to stabilize the wine and back sweeten, and you can find detailed instructions on stabilizing wines here. […]

      Reply

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