1. Introduction
- Alongside traditional microbiological testing methods such as culture, membrane filtration or PCR, the need for rapid testing in order to make an immediate decision is becoming increasingly urgent.
- Among them, ATP testing is regarded as the fastest method today for checking cleanliness – dirtiness, assessing total microbial load and organic matter. In particular, the LuciPac A3 Water test kit combined with the Lumitester Smart device (Kikkoman – Japan) brings a water quality testing solution in just 10 seconds, with outstanding sensitivity and high accuracy, helping businesses control hygiene in real time.

* This article will analyse in detail:
- What is ATP? Why use ATP to assess water quality?
- Why is LuciPac A3 Water the leading rapid testing tool?
- Applications of ATP testing in production water control and system hygiene.
- The procedure for rapid testing with Lumitester Smart.
- The key benefits when businesses apply ATP testing in quality management.
2. What is ATP and why can measuring ATP assess water quality?
2.1 What is ATP?
- ATP (Adenosine Triphosphate) is the energy-carrying molecule present in all living cells. All microorganisms – including bacteria, yeast, moulds, algae – contain ATP. Not only that, ATP is also present in organic matter such as dirt deposits, biological fluids, food, waste…
Therefore, ATP is an overall indicator that helps assess the level of contamination of water quickly, including:
- Living microbial load
- Organic residue
- Signs of biological contamination
- Hygiene problems with pipes or tanks
2.2 Why is measuring ATP important in water control?
Traditional methods such as microbial culture need 24 – 72 hours to produce results. However, many production facilities need to decide immediately:
- Is the water line after CIP clean enough?
- Are the water pipes recontaminated?
- Does the water used to prepare products meet the requirements?
- Does the system need to be cleaned again?
ATP testing solves this problem with results in 10 seconds, allowing businesses to:
- Reduce the risk of cross-contamination
- Control hygiene in real time
- Optimise the CIP cycle
- Avoid wasting chemicals and time
- Ensure the quality of inlet and outlet water
3. What is LuciPac A3 Water?
- LuciPac A3 Water is a dedicated ATP test kit manufactured by Kikkoman Biochemifa (Japan), used to check the level of contamination in water with A3 technology – measuring ATP + ADP + AMP at the same time.
A3 technology stands out from standard ATP testing in that:
- If microorganisms are damaged or dead, ATP breaks down into ADP and AMP.
- A3 technology measures all 3 forms, so the sensitivity increases 100-fold.
This is why LuciPac A3 Water is regarded as the most sensitive water test kit today, suitable for both clean water, drinking water, RO water, water in the pharmaceutical industry, medical devices and water after disinfection.
4. Outstanding advantages of the LuciPac A3 Water test kit
4.1 High sensitivity – proprietary A3 technology
- Unlike standard ATP test kits that only measure ATP, LuciPac A3 Water measures ATP + ADP + AMP
→ It allows detection of contamination even when only very small traces of microorganisms or organic matter remain.
4.2 Extremely fast time to result – only 10 seconds
- When used together with the device Lumitester Smart, the entire result reading takes only 10 seconds, the fastest among current methods for checking cleanliness – dirtiness.
4.3 No microbiologist required
The ATP testing method does not require:
- Microbial culture
- Preparation of media
- A dedicated laboratory
→ Anyone can operate it after a few minutes of instruction.
4.4 Measure directly on site
Lumitester Smart is compact, battery operated and Bluetooth connected. LuciPac A3 Water requires no accompanying chemicals. Users can test water:
- On the production line
- At the tank
- At the CIP station
- At points where it is hard to transport samples to the laboratory
4.5 Data is stored and tracked automatically
The Lumitester Smart device connects to the Lumitester Smart App, allowing:
- Saving all results
- Exporting report files
- Tracking hygiene KPIs
- Alerts when thresholds are exceeded
5. Which industries need to use LuciPac A3 Water to check water quality
5.1 Food and beverage industry
- Water for washing the tanks
- Water for preparation
- Water after CIP
- Hygiene checks of beverage, milk, beer and drinking water production lines
→ ATP testing helps ensure a clean line and prevent product cross-contamination.
5.2 Pharmaceutical and medical device industry
- Control of RO water and purified water
- Water used for equipment cleaning
- Monitoring of WFI (Water For Injection) systems
→ Even the slightest contamination can affect GMP.
5.3 Hospitals – clinics – operating rooms
- Checking water used for sterilisation equipment
- Assessing pipeline hygiene
- Controlling the water filtration system for dialysis patients
5.4 Seafood and agricultural processing plants
- Water for washing raw materials
- Water for factory hygiene
- Water for workers to wash their hands
5.5 Hotel – restaurant – industrial kitchen industry
- Checking the quality of equipment washing water
- Monitoring kitchen hygiene
- Checking the supply water for industrial dishwashers
5.6 Livestock farms
- Checking drinking water for livestock and poultry
- Assessing the effectiveness of drinking trough hygiene
- Monitoring the water supply system in the barn
5.7 Water treatment systems – environment
- Checking inlet water
- Monitoring disinfection efficiency
- Controlling recontamination in pipelines
6. The procedure for rapid water testing with the LuciPac A3 Water test kit and the Lumitester Smart device
Below is the standard procedure for performing an ATP – A3 measurement in water.
6.1 Preparation
- Lumitester Smart device
- LuciPac A3 Water test kit
- Water sample container or clean beaker
6.2 Testing steps
- Step 1: Take a sample, put about 0,1 – 1 mL of water into the LuciPac A3 Water test kit according to the instructions.
- Step 2: Close the kit and activate the enzyme. Shake gently so the kit mixes the reaction solution evenly.
- Step 3: Insert the kit into the measurement chamber of the Lumitester Smart device
- Step 4: Read the results. After 10 seconds, the device screen will display: the RLU value (Relative Light Unit), PASS / FAIL evaluation (if configured), and save data to the phone via the app.
7. What do ATP test results tell us
- The higher the RLU value → the greater the level of contamination.
- Businesses can set their own control thresholds according to their own standards, for example:

(Note: When building the criteria, the threshold must be determined based on the actual baseline of the plant).
8. Comparing LuciPac A3 Water with standard ATP test kits

9. Why businesses should use ATP testing in water quality control
- Shorter decision time: no need to wait 2–3 days as with microbial culture. ATP testing allows immediate assessment of cleanliness – dirtiness.
- Reduced testing cost: no laboratory, culture media or complex microbiological equipment needed.
- Prevention of production incidents: ATP testing helps detect the risk of contamination early before products spoil, become contaminated or have to be recalled.
- Optimised CIP process: decide whether CIP is complete, avoiding excess cleaning that wastes chemicals and avoiding insufficient cleaning that causes recontamination
- Easy data retrieval: the Lumitester Smart device automatically records the tester, the time, the control point and the cleaning history. Suitable for internal and external audit evaluations.
LuciPac A3 Water together with the Lumitester Smart device is the most effective – accurate – cost-saving rapid ATP testing solution today for checking water quality. With proprietary A3 technology, the ability to measure ATP+ADP+AMP and a time to result of only 10 seconds, businesses can control hygiene in real time, reduce the risk of cross-contamination and improve product quality. Applying ATP testing not only helps comply with the HACCP, ISO 22000, GMP,… standards but also contributes to improving management efficiency and significantly reducing operating costs.
👉 See the product we offer: ATP surface hygiene test kit

