How To Use the Kick Start Bottle23 February 2018 | HOTBIN Composting Why is The Kick-Start Bottle Needed?If your lid thermometer reads below 15°c despite adding waste on a regular basis then the composting bacteria in your HOTBIN may have become dormant. This is usually most common in one of two situations; when starting your HOTBIN during the winter or continuing use after having a holiday/break where the HOTBIN has not been fed for some time. On these occasions you may need to use the kick-start bottle to create a heat boost (like a hot water bottle) for the bacteria which will wake them up and encourage them to once again start digesting waste. What If the Temperature is Over 15°c?If the lid thermometer reads over 15°c then the bacteria will already be active so using the kick-start bottle will have very little effect. In this instance we would recommend adding fresh waste to the HOTBIN on a regular basis to reach and maintain hot composting temperatures. Can Hot Water Just Be Added Directly Into the Bin?Do not pour boiling water directly into the heap - the water will simply cool leaving no energy to evaporate the extra water and the contents in an overly wet state. Instructions for Using the Kick Start Bottle
As a result you should see an increase in temperature which should be sustained as long as waste is added on a regular basis with shredded paper/card and bulking agent. Looking for printable instructions? Downloadable instructions can be found here. Warning: Once full, bottle is extremely hot, wear gloves and handle with care. The kick start bottle supplied with the HOTBIN is manufactured from a high density polyethylene (HDPE). This material has been chosen to withstand the boiling temperatures from water poured inside it and is not the same as fizzy drink bottles (PET) or milk bottles (LDPE). DO NOT substitute with a bottle that is not HDPE (plastic/glass) which will likely warp or potentially break causing injury to the user. Damaged or Lost Kick Start Bottle?If you have lost your kick-start bottle or it has become damaged, a replacement can be ordered from the HOTBIN shop. The Science Behind Why the Bottle WorksAn understanding of the science behind this process will help understand when it will and won’t work.
Easy to Digest Waste Must Be AddedThis kick-starting technique only works if there is enough easy to compost food waste. We liken it to a human diet - if you eat a high fibre breakfast you get steady energy all day, but drink coke and eat sweets and you'll be on sugar high for an hour! Since the heat from the bottle only lasts an hour or so, the bacteria need easily digestible food source (vegetable & fruit peelings, grass, nettles, comfrey) during this hour. If your HOTBIN is full of woody material this is harder for the bacteria to digest and therefore no new heat will be generated. Be aware that in most cases large heat increases will only be seen once the waste level in the HOTBIN is over 40cm deep (above the hatch height). If you are not yet at this stage, stay patient and keep adding waste. | Forum Email us
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