Coopers DIY Beer 740ml Oxygen Barrier Home Brewing Beer Bottling Set, Qty. 15, Brown

Used these in class for a fermentation lab with my students, making root beer. No problems with it.

I used these on a batch of pear cider I made, and they are easy to sanitize, fill, and clean after. they are not all that clear, they have some inconsistency in their color or whatever, giving the appearance of sediment in the bottle when there is not, but its a dark brown bottle, you'll generally pour out to a glass anyways so that's not a big issue. I have not reused them yet but I can see it being easy, the clean up easily if washed right after using (I'd be hesitant on using bottle brushes on them, they may get scratched easily) but the cap should screw on just as tight as the first use, I'm hoping anyway. The ring on the bottom of the cap does tear off like in commercial screw tops, but that is removed and should not be needed for subsequent uses. They are thin and easy to squeeze, but once my cider was inside and carbonated (naturally) they were tight and didn't indent easily.

First time buying bottles but very durable.

YET ANOTHER UPDATE: Been using these now for over 3 years - same bottles. Incredible quality.UPDATE: Still happy with these, but 1 bottle out of the 15 had a manufacturing flaw around the neck and wouldn't hold a seal.ORIGINAL REVIEW: If you've tried bottling cider or beer in regular bottles or Grolsch-style bottles, you know what a pain bottling day is. Bottling in these is a piece of cake. Sanitize the bottles and caps with Starsan, drain for a bit, fill them up, and screw on the caps. That's it. And I especially like that I can give one a squeeze each day after two weeks and determine when they're ready to cold-crash. I've always been afraid of a bottle bomb, because that would be it for my home-cider-making since SWMBO would outlaw it, so I always carbonate lightly but with these, you can carbonate as heavily as you'd like. When the bottle's hard, stick it in the fridge.I brew right around 3 gallons at a time and that's 14-15 bottles, so a case of these is perfect for one batch of cider. I just bottled my second case today and cracked the first one from the case I bottled 2 weeks ago. Carbonation level was perfect and the bottle performed great.I was just about to write that I didn't like that ring on the cap that stays on the bottle after opening it--but before I wrote that, I picked up the bottle and discovered that the ring comes off very easily--no problem and it doesn't screw up the threads.I like the fact that the caps are reusable, but eventually I can see that they'd need to be replaced so it's good to know the rings just slide off.Going to buy another case right now and some more caps before word gets out that this is the way to go. As soon as everybody finds out, the price'll go up!

Personally, I prefer plastic bottles over glass bottles... Why?1) Never had a bottle bomb, but if there was one, I'd prefer it to be plastic.2) Plastic bottles tell you when they are carbonated. Squeeze 'em. See #1 - you might find a potential BB just in time.3) Capping plastic bottles is 95% faster and simpler than capping glass bottles.4) Caps can be re-used over and over.5) They don't break, are light and quiet. Like when you drive in your car.6) After bottling, I squeeze all the air out before I tighten the caps. Not sure if it makes a diff, but not really possible with glass bottles. ;)So, that said, you can just collect soda bottles, but they are usually transparent or green, which may lead to skunkiness. Plus most are very flimsy, not sure how that affects O2 intrusion.That leaves us with these bottles, and MrBeer 1l bottles. I have both, and I like both. Main differences are the size (yes, Cptn Obvious). I like both sizes. Maybe the 1l a bit more - it is just enough for a Sunday afternoon. 3/4l is a bit too much for my regular weekday (prefer 0.5l), and just a bit short for the weekend.These seem a bit stronger than the MrBeer ones, but I am not sure... perhaps it is because they are smaller? Not a biggie anyway. MrBeer bottles have white caps, which are easier to write on than the black ones that come with Coopers. Finally, at the moment these are a tad cheaper than MrBeer bottles - $1.71/l vs $1.875/l. Not significant.Conclusion - these are fine if you like plastic bottles over glass. Different size compared to MrBeer, decide what works best for you. Maybe both.

We bought a Mr Beer, beer making system, and we wanted extra bottles. I decided to go with several cases of these even though our Mr Beer kit came with bottles. These bottles are great for your secondary fermentation where your beer is carbonating in the bottles. The bottles are designed to release excess pressure so they don't blow during secondary fermentation. They have worked perfectly so far. In our past beer making, we have had a number of bottles blowing their tops. Not one of these had an issue. Yes they are plastic and glass offers a better flavor, but in life, there sometimes needs to be a trade-off to get to where you want to be.

You don't get the cool Cooper Box in the image. Bottles are fine, wanted the cool box though...

These are awesome bottles and I love them! I like that both the bottle and the caps are reusable and lake/river safe! I use a 1/2 bottle wand and can bottle a 5g batch in under 10 minutes!So why the 1 star dock? The instructions! The instructions say to use 2 coopers carb drops per bottle, do NOT do this unless you enjoy your beer carbonated to campaign like levels! I lost an entire batch of farmhouse ale to over-carbonation due to their crappy instructions. I switched back to just using priming sugar and everything has been fine.