Fermcap-S Foam Inhibitor- 1 oz.

This product is food grade silicone based, which is similar to what is used by major name brand soda bottling manufacturers to prevent foaming in the manufacturing and bottling process. When making homemade root beer or sodas made from homemade syrup (strawberry for example) using fresh fruit, they can tend to get very foamy and make it difficult to carbonate. 1-2 drops of this product in the soda bottle keeps this foaming to a minimum, allowing me to use the soda maker to force carbonate the soda. If you make homemade root beer or sodas, this can be added to prevent excessive foaming with forced carbonation methods or traditional yeast in the bottle methods. The bottle is small but you will only use 1 or 2 drops at at time so overall, I believe it to be cost effective.

This Fermcap saves me a lot of hassle during my brew day. I can just add a few drops and no more boil over scares. This product is inexpensive and the convenience outweighs the price.

first time using this stuff and Ive brewed beer for 8 years. lowering hydrophilic interaction, what a great addition to any homebrewers closet. This order came with 2 bottles, assuming 0.5 oz each. I didnt look at the label. I added about 12-15 drops to during my boil and and broke up the foam within a few minutes. No risk of boil over. In my brewing experience I've have 4-5 boil overs, they can sneak up on even veteran brewers. When your making a 10 gallon or higher batch removing the heat source is not an option, stirring can cause the boil over to accelerate before break up. This product is a sure fire way of eliminating the issue. Now as of what it does to the beers flavor, I do not know yet. I will find out in 6 weeks.

The stuff works great for keeping your kettle from boiling over. Looks can be deceiving though, you don't receive two 0.5oz bottles, but one 1oz bottle. No biggie but be aware.

Unlike all the home brewers who buy this product, I use it to cut down on foam when I make smoothies. Casein and whey protein can be terribly foam when you blend them for anything more than a whirl or two, and this knocks out the foam almost completely. I love it for that. It’s also great for when you’re cooking things that love to bubble out of the pot. How much do I use? Let’s do some measurement math. The bottle notes that the defoamer should not be used in excess of 200 PPM (this is the max concentration approved by the FDA). That is about 11 drops per gallon, max, or about 2.5 drops for one quart of liquid (more or less my smoothie size). If that’s the max, what’s the minimum effective amount? The bottle states that the low end of the scale is 1 drop per gallon, or approximately 0.25 drops per quart. How do you get 1/4th of a drop out of the dropper bottle? You can drop it into a small measured quantity of water (say, 4 Tbsp.), mix it, and use 1/4th of the quantity, saving the rest for another time (or spill it out). For my daily smoothie routine, this became a hassle, so what I do is squeeze out a bit until it just starts to bulge from the dropper, and dab that onto a spoon which I stir into my smoothie liquid. Is it exactly a quarter drop? Probably not. But it’s definitely far less than the 2.5 drop maximum concentration. And that amount seems to be ideal for cutting foam for my purposes. Some folks might ask, is this safe to consume? The answer is yes. The defoamer is made from silicone, but don’t freak out, it is the same compound that food manufacturers use to cut foam in their liquid food products. And as noted, it’s FDA approved for use up to 200 PPM. How do I know? My food scientist ex confirms this. If you’re a person who is super granola, all natural and aggressively organic, you’ll probably shrink in horror at the thought of consuming a chemical, whether or not it’s been tested and approved by the FDA. That’s fine — I assume you are also probably OK with smoothies that have 2 inches of foamy head on them. You do you. As for me, I’m ok with the relative risk of consuming half a drop a day in exchange for glorious foam-free smoothies. I’ll update this review if it turns out I get silicone-induced cancer in 20 years - stay tuned!

You aren't buying this stuff without knowing what it's for. It works. Generally used in brewing, I actually needed this for foam control in vacuum reduction (a la Modernist Cuisine). It worked well, and left no noticeable taste. The bottles are sturdy and the caps seal the bottle nice and tight. I got two bottles in my order, I'm assuming 1/2 ounce each. It should last me a very long time. I should mention that you can get it for a better price elsewhere due to the included (and hidden) shipping costs in most Amazon products, however if you aren't buying it with other supplies, the shipping costs from other retailers will negate that benefit. Pros: - Small, sturdy bottles - Works well to prevent foaming, even in thicker liquids - Fun to watch make the foam melt away - Only takes a drop or two per gallon Cons - None

Worked well during fermentation but not so much during the boil. It seems like we spent just as much time as before, watching the brew pot, and even very late in the boil when we thought we were safe--we were not. That said, it worked frighteningly well during fermentation. To the point that I was worried that the yeast weren't doing their thing. They were. Never got more than a couple inches of foam during primary.

Don't know why I've never used this before. Stuff performs miracles!! No boil-overs and keeps the fermenter head down when I oxygenate my wort.