The Kilner 100ml Trial Jar is a small plastic container perfect for brewing beer at home. With a sleek design from the trusted brand Kilner, this trial jar is ideal for tasting and experimenting with different brewing recipes. Its compact size makes it convenient for brewing small batches of beer, allowing for easy monitoring and control over the brewing process. Perfect for both beginners and experienced homebrewers looking to try out new recipes or experiment with different brewing techniques.new & sealed.