





Nassenheider Evaporator
760-0100
Price excludes GST
Please order in multiples of 2 units. That is is how they are packaged at the factory, with 46 evaporators packed per carton. Please note: the evaporator is sold without 65% Formic Acid. Click here for Formic Acid.
Take control of varroa mites effortlessly with the Nassenheider Professional Evaporator. This long-term evaporation system is designed for safe and effective varroa treatment in beehives. Perfect for autumn (and Spring) varroa control, it utilizes a 65% formic acid (FA) solution for consistent evaporation over a 20 day period when using the No.2 wick. Beehives with high infestations can be brought under control in a relatively short space of time. In areas with high re-infestation issues, it is recommended to do 2 treatments. For treatments in summer or during a honey flow, we recommend using Oxalic Acid Extended-release (OAE) strips.
Extra 250ml Nassenheider bottle? Click Here.
Need a rim? Click Here.
Want mesh on the bottom of the rim? Shop Here
Evaporation rates:
With 65% Formic Acid, it is recommended to evaporate between 9 and 22 mill per day per full depth brood box. 22 mill per day in one brood box is at a level where it is thought to disrupt the mites under the cell cap. But that high level of exposure is not necessary for good mite control. 14 mill per day will kill virtually all the phoretic mites. (Mites on bees) Drone cells are capped for 14 days so as long as there is an application killing virtually all phoretic mites for a continuous 15 day period then good varroa control can be accomplished.
Safety.
Formic Acid liquid, and the gas from the liquid, can damage skin and eye tissue. It is very important that suitable protective clothing is worn. It is especially important when filling bottles from the bulk supply containers. A respirator mask with face protection, nitrile gloves, PVC apron and overalls should all be worn. Replacing empty bottles with full bottles in the field requires nitrile gloves as a minimum. Stand upwind when doing this procedure.
In a Featherston field trial, where autumn varroa control was historically challenging, the Nassenheider Evaporator delivered outstanding results, significantly reducing mite levels and improving colony health. Read the full blog HERE.
For more info and FAQ: Click here.
For our Blog article on how to test for Varroa mites in your beehive: Click here.
Engineered for performance and safety, the Nassenheider Professional Evaporator is trusted by beekeepers to protect their hives effectively. With 46 units per carton, stock up for your apiary or share with fellow beekeepers. Order in multiples of 46 for the best value!
Use with 65% Formic Acid: Available here.
Nassenheider Bottle - 250ml
760-0105
Price excludes GST
Make your varroa treatments more efficient with this spare 250ml bottle, designed to use with the Nassenheider Professional Evaporator. This is ideal for beekeepers who want to perform a second treatment without needing to refill the original bottle or those who prefer to pre-fill multiple bottles before heading to the apiary.
A simple, cost-effective upgrade for serious beekeepers using the Nassenheider Evaporator.
To order Nassenheider Evaporator: click here.
Order now to streamline your varroa treatments.
Formic Acid 65%
760-0101
Price excludes GST
Important: Formic Acid can't be shipped to rural addresses. See shipping details at the bottom of this page or contact us to discuss your options. Shipping may take a few extra days.
Temporary Shipping Delay: We are currently experiencing delays of 2 to 3 weeks for delivery. We appreciate your patience while we resolve this.
This 65% Formic Acid solution is prepared for use with the Nassenheider Professional Evaporator, enabling slow and consistent evaporation over approximately 20 days. Designed for easy handling and consistent performance in temperature-controlled applications.
Add the required amount to your Nassenheider Evaporator following the manufacturer’s instructions. Evaporation may occur over a period of approximately 20 days depending on environmental conditions. Always follow all safety and handling guidelines.
Formic Acid is classified as a Dangerous Good (DG), and special transport conditions apply:
After adding items to your cart, proceed to checkout to view the estimated shipping cost. If the rate looks high, return to your cart and submit a quote request for a more accurate freight price.
Need help? Contact us for assistance with bulk shipping or delivery options.
This product is not advertised or sold for any agricultural compound use as defined under the ACVM Act 1997, including but not limited to the treatment or control of Varroa mites. If you require a registered product for such use, please consult an appropriate registered compound or seek professional advice.
Nassenheider Accessories
760-0106
Price excludes GST
Keep Your Nassenheider Evaporator Working at Its Best
Over time, the wick and blue cloth in your Nassenheider evaporator will wear out and need replacing for optimal performance.
Beequip stocks genuine replacement parts to keep your Varroa treatments effective and consistent.
Order your replacement wick and cloth set here and keep your Nassenheider running smoothly.