Microbiological Dipslides (General Purpose) Box of 10

  • Nutrient + Malt Extract Dipslides red spot
  • Microbiological Dipslides (General Purpose) Box of 10
MADE IN THE UK under ISO 9001
Nutrient + Malt Extract Dipslides red spot
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Current stock level : 2962 Boxes
(More in production)

Current Stock expiry date :
07 October 2024

The General Purpose Microbiological Dipslide can be used to test for microbiological contamination in a wide array of industries. These dipslides will test for bacteria, yeasts and moulds (fungi).

Each dipslide box includes 10 dipslide tests. 

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Order 25 or more boxes Receive a 2.5% discount Price £12.42
Order 50 or more boxes Receive a 5.27% discount Price £12.07
Order 100 or more boxes Receive a 8.92% discount Price £11.60
Order 250 or more boxes Receive a 14.24% discount Price £10.93
Order 500 or more boxes Receive a 18.89% discount Price £10.33
Order 1000 or more boxes Receive a 21.5% discount Price £10.00
Product Information
Front Agar Type Nutrient TTC
Front Agar Colour Straw
Front Agar Growth Total Count (TTC / Red Spot)
Rear Agar Type Malt Extract
Rear Agar Colour Brown
Rear Agar Growth Yeasts & Moulds
Certification ISO 9001
Suggested Incubation Times 24 - 120 Hours
Suggested Incubation Temp 30°C

About Our microbiological dipslides (general purpose) box of 10

This is a general purpose microbiological dipslide that can be used for testing a wide variety of samples.

Suitable applications include:

  • Teaching / Education 
  • Food / Beverage
  • Industrial waters
  • Wastewater
  • Environmental
  • Laboratory
  • Laundry
  • Koi pond water

This microbiological dipslide features Nutrient agar TTC on one side and Malt Extract agar on the other side.

Nutrient agar is a general purpose media that will support the growth of / test for aerobic bacteria / microbes. It will grow a wide range of micro-organisms . This agar is often used to test the 'general health' of a sample. The nutrient agar on this dipslide contains TTC (red spot dye). The dye in this agar allows for easier viewing of microbiological colonies after incubation. Due to the dye, the colonies will appear as red dots.

Malt Extract agar will support growth of / test for yeasts and moulds (fungi). Again, this is a broad spectrum agar that will grow a wide variety of yeasts and moulds. Yeasts will grow as pale / straw colonies and moulds will usually appear as fluffy colonies. Examples of the appearance of colonies on both agars can be seen in the charts below.

These microbiological dipslides come in a pack size of 10 slides per box. The slide has a flexible paddle and is located inside a shatterproof container. 

Flexible microbiological dipslide paddle

Flexible Paddle

Each dipslide features a virtually unbreakable and flexible paddle allowing for even, full surface testing.

Easy run off design

Easy Run Off Design

Due to the design of the dipslide, fluids will drain off quickly during testing.

Recessed dipslide Handle

Recessed Handle

Each slide has a handle built into the lid that is recessed to help keep your fingers dry during testing.

Side Indicator

Side Indicator

One side of the slide will have a circle indicator so you know which side was used for testing which type of contaminant.

Dual sided paddle

Dual Sided

Each dipslide is dual sided to allow multiple contamination testing with one test.

Thick reliable Agar

Thick Reliable Agar

Each agar is thick (approx 4mm) and raised above the dipslide to allow for easy surface testing.

How to use the General Purpose (DS-GP) Microbiological Dipslide

Simply remove the dipslide and immerse in the sample for approx 10 seconds. Remove dipslide and allow to drain for a few seconds, then replace the slide back into the tube and incubate for a minimum of 24 hours (up to a maximum of 120 hours).

A comparison chart is included so you can easily compare your results.

Remove Nutrient + Malt Extract slide from tube

Step 1 : Remove slide

Carefully remove the sterile General Purpose dip slide from its tube ensuring that no contact is made with the agar (to avoid contamination).

Surface testing

Step 2 : If Surface Testing

For surface testing, press the General Purpose dipslide onto the surface. If needed, place a finger on the bottom of the slide (on the plastic, not the agar) to apply extra pressure.

Liquid Testing

Step 2 : If liquid testing

For liquid testing, immerse the General Purpose dipslide into the fluid for 10 seconds then remove and allow to drain for a few seconds.

Swab Testing

Step 2 : If swab testing

Apply a sample of the test substance to a sterile swab and gently apply to the agars.

Incubate the dipslide

Step 3 : Incubate Slide

Label the tube with the included stickers then place the slide into an incubator and allow to incubate.

compare dipslide results

Step 4 : Compare results

Count the amount of colonies that have grown on the slide and compare them to the comparison chart provided.

Dip Slide Storage

Store dip slides in a cool dry place (optimum temperature 8-15 degrees c). Use before the expiry date on the box. 

Dip Slide Disposal

Used dip slides should be incinerated, autoclaved or soaked in disinfectant for several hours before disposal.

Reading The Microbiological Growth / Results

Nutrient Side

Level of infection in liquids







Approx colonies per agar







Example Image

102.jpg 103.jpg 104.jpg 105.jpg 106.jpg 107.jpg

Level of infection on surfaces

0.4 2.5 12 40 100 250

Malt Extract Side

Level of yeasts in liquids







Approx yeasts colonies per agar







Example Image

Yeast dipslide growth Yeast dipslide growth Yeast dipslide growth Yeast dipslide growth Yeast dipslide growth Yeast dipslide growth

Level of yeasts on surfaces







Malt Extract Side

Level of moulds




Example Image

Light mould growth on slide Medium mould growth on slide heavy mould growth on slide


What are Microbiological dipslides?


Microbiological dipslides are plastic paddles coated in a prepared culture media (Agar). They are used for microbiological monitoring of a surface or liquid. Each agar tests for a different group of micro organisms and will show growth if a particular contaminant is present in a sample. 

Additional Details

Product Reference : DS-GP

Internal catalogue reference : DS001-106

Product external rating on reviews.co.uk:

4.8 out of 5 based on 12 customer ratings

Reviews (independently collected by reviews.co.uk)