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    Glass Demijohns – Essential Fermentation Equipment

    Choosing the right capacity

    Demijohn capacity depends on the volume you plan to produce. The Stakleni balon 54 l is an excellent choice for home wine and spirit production, while smaller 25-34 L sizes are ideal for experimenting with smaller batches. Always leave 10-15% headspace for foam during active fermentation.

    Glass thickness and quality

    Quality demijohns feature uniformly thick glass that withstands fermentation pressure and temperature changes. Agromarket offers demijohns made from thick, crack-resistant glass. Avoid cheap thin-walled models that can shatter under CO2 pressure or during cleaning.

    Shape and neck width

    Demijohns with wider necks make cleaning and sediment removal easier, while narrower necks better protect fermenting contents from oxygen exposure. Standard neck diameter of 40-50 mm accepts most rubber bungs and fermentation airlocks. Choose the shape based on fermentation type – wine requires more stable temperature and less oxidation.

    Safety and maintenance

    Before each use, inspect the demijohn for micro-cracks by holding it up to light. Always wash with lukewarm water and baking soda, never hot – sudden thermal shock can damage the glass. Use plastic or wicker carriers for transport, as glass becomes slippery when wet.

    What to avoid when buying

    Don't purchase demijohns without quality verification – glass must be transparent without air bubbles or stains. Models with thin bottoms are unstable and tip over easily. Check that the neck is symmetrically finished so the bung fits snugly to prevent oxidation and contamination.

    Selection and Pricing

    We offer 4 products from 1 brands across 1 sellers. Prices range from 1,260 to 1,800 RSD.

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