Winner of the 1st OBI Prize

Anti-Varroa Plastic Hive Bottom Board — Composite Perforated Base

Designed by Kipselotechniki with 40 years of experience and strength certified by Optiphore — for ease of use, durability, and time savings.

The Patent

A Patent That Changes the Game

Kipselotechniki's composite plastic base is the result of forty years of experience and continuous research. It brings together pioneering innovation, unmatched durability, and multipurpose flexibility in a single, award-winning product, for both Langstroth and Dadant hives.

The perforated floor works as an anti-varroa screened bottom board: dislodged varroa mites fall through the openings and leave the colony for good, while constant natural ventilation keeps moisture — and the brood diseases that follow it — under control.

InnovationUnmatched DurabilityMultipurpose Flexibility

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Sturdy Base & Safety Water Channel

The base features an incredibly sturdy construction. On top, a perimeter safety trough prevents water dripping from the upper sections from entering the hive. Reinforced stoppers secure the hive on all sides, the raised corners allow for safe stacking, and four solid feet support it just like a wooden hive, to which it connects with short adjustable fasteners. The unmatched sturdiness of the base is officially certified by Optiphore, having successfully undergone extensive testing that proved its resilience under extremely heavy weight loads.

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Integrated Entrances

The raised entrances are visible at the front. The base features two entrances and four integrated doors: two with 0.8×0.9cm holes allow only bees to enter while keeping natural enemies out, while the other two are specifically designed for safe transportation.

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Pollen Traps

The two internal pollen traps are easily inserted through the entrances, offering rapid installation and removal. The passage holes are properly rounded to prevent any injury to the bees as they enter, and a specially designed escape protrusion is provided to prevent bees from getting trapped on their way out. Additionally, both pollen traps incorporate four enlarged holes allowing drone bees to exit unhindered. Should this function not be desired, a special attachment is provided, allowing the beekeeper to open or close these drone holes at will.

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Pollen Collectors

The two pollen collector trays fit onto the underside of the base in specially designed guide rails, maintaining the hive's flush profile without protrusions while protecting the collected pollen from rain. By inserting the trays upside down and extending them outwards, a spacious landing board is created, preventing grass from obstructing the entrance. Simultaneously, the sloped, rounded apron deflects rainwater, facilitating a smooth landing for the bees.

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Clog-Free Perforated Floor

The perforated floor's openings widen towards the underside, so they never clog with debris from inside the hive. With the pollen collectors seated in place, it ensures constant natural ventilation and protection.

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Adjustable Ventilation 0–100%

By fully inserting the pollen collectors upside down and closing the middle piece (which is already fitted to the bottom of the base, between the pollen collectors), the base becomes completely sealed with 0% ventilation—ideal for the winter season. Furthermore, during transport, the middle piece can be opened, ensuring a stable and safe ventilation rate of 20%. Ultimately, through the appropriate combination of opening and closing the pollen collectors and the middle piece, the beekeeper gains full control, accurately adjusting the ventilation to the exact desired percentage.