Will it be safe to create a moderate vacuum in this Carboy?

I am not sure, however the glass is thick.

Are the horizontal lines on these carboys gallon makers? So the third vertical line up from the bottom is the 3 gallon mark?

Thanks for asking. The horizontal ridges do not measure volume increments. They exist for structural purposes and give the carboy added strength. To determine volume increments, you can use a 1 gallon jug to fill up the carboy 1 gallon at a time and use a marker, sticker or tape to mark each increment. Thanks!

Where is the bottle made? on the bottom of the bottle it should say where it is made.

Thanks for shopping. Our 3g carboys are produced in Italy. Thanks!

Largest coin that will fit?

The opening is 1 in a quarter inches.

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Geo Sports Bottles BT3GG 3 Gallon Round Glass Carboy fits 30mm Cork Finish or 55mm Push Cap Home Brew (Clear Glass)

Geo Sports Bottles BT3GG 3 Gallon Round Glass Carboy fits 30mm Cork Finish or 55mm Push Cap Home Brew (Clear Glass)

Product ID: 434115040

Details

Brand
Geo Sports
Colour
Clear Glass
Item length
16 Inches
Item weight
4.72 Kilograms
Manufacturer
Geo Sports
Material
Glass

🌍Eco-friendly reusable & recyclable design

🧼Scratch-resistant for easy deep cleaning

🛡️3-gallon premium oxygen-impermeable glass

Description

🍺 Elevate your homebrew game with clarity and sustainability!

BREW BOLD BREW PURE - Premium glass blocks oxygen to preserve flavor and purity.
ECO CHIC FERMENTATION - Reduce your carbon footprint with sustainable glass.
GENEROUS 3 GALLON CAPACITY - Ideal size for serious homebrewers expanding their hobby.
PERFECT FIT FOR YOUR CRAFT - Compatible with 30mm cork or 55mm push cap for versatile sealing.
BUILT TO LAST CLEAN WITH EASE - Scratch-resistant surface lets you scrub without worry.

The Geo Sports Bottles BT3GG is a 3-gallon clear glass carboy designed for home fermentation of beer, wine, cider, and mead. Its premium oxygen-impermeable glass protects beverages from contamination while being scratch-resistant for easy cleaning. Unlike plastic, it won’t absorb odors, ensuring pure flavors every batch. Compatible with standard corks and push caps, this eco-friendly, reusable carboy supports sustainable brewing practices and weighs 4.72 kg with dimensions 25.4 x 25.4 x 48.26 cm.

Specifications

ASIN	B01M0PK5KG
Brand	Geo Sports Bottles
Colour	Clear Glass
Customer Reviews	4.6 4.6 out of 5 stars (992)
Item Dimensions L x W	40.6L x 22.9W centimetres
Item Length	16 Inches
Item Weight	4.72 Kilograms
Manufacturer	Geo Sports Bottles
Material	Glass
UPC	841545115428
Unit Count	1.0 count

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