Demijohns are still used today, or again for small margins use, since glass is taste-neutral. They are now available in standard sizes of 5, 10, 15, 20, 25 and 54 litre (in exceptional cases also in 34 litre). They are ideal containers for fermentation (fermentation only, no pressure vessels), storage of fruit wine and distillates
Glass is sensitive to breakage and is supplied for protection only in a plastic basket and special cardboard packaging!
Please note that these containers are for pressure-free storage, should pressure build up in any manner, fermentation cylinders are necessary!
The balloons are also not suitable for higher temperature variations, e.g. Rinse with hot water, fill with cold or hot liquids, also put on a cold windowsill and let the sun shine on it, which leads to stress cracks!