Hydrated Lime Powder (Calcium Hydroxide) - 250g | Little Acre
Hydrated Lime Powder (Calcium Hydroxide)
Hydrated Lime Powder (Calcium Hydroxide)
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Hydrated Lime Powder (Calcium Hydroxide)

Regular price $5.00 Sale price $5.00

Unit price per 



This product is Hydrated Lime (builder's lime) for use in pasteurisation of mushroom substrate. It is NOT "pickling lime" and is not fit for consumption or as an ingredient in food products. Please read our safety warning below for handling Hydrated Lime.


This powder is used to increase the pH of your substrates during pasteurisation. Only 1g is needed for every litre of water. Not to worry if more than 1g is added - this will not affect the process as it will simply not dissolve and remain as sediment in the water.

Our hydrated lime comes in a resealable pouch for easy use and to keep dry when not in use.

SAFETY WARNING: Please use in a well-ventilated environment and wear gloves, a mask and goggles or glasses when handling as this is corrosive to the skin. Not to be used as pickling lime. This is builder's lime.

Weight: 250g and 1kg amounts



  • Support our small (but mighty) independent business!


  • Shipped using biodegradable tape, in a home-compostable satchel or recyclable cardboard box


We’re a little team doing big things here at Little Acre and we do our very best to get your goodies on their way to you ASAP.

Gift messages

You can now add a gift message to your order 🎁 Simply enter your message at checkout and we’ll print it on a gorgeous card - free of charge!

Christmas shipping

Please get your orders in as soon as possible to ensure they have plenty of time to arrive. Here are the Australia Post cut offs:  

Metro areas excluding WA and NT*:
Parcel Post: Monday 18 December – order by Sunday 17 December
Express Post: Thursday 21 December – order by Wednesday 20 December

WA and NT*:
Parcel Post: Thursday 14 December – order by Wednesday 13 December
Express Post: Wednesday 20 December – order by Tuesday 19 December.

*Please note: The dates provided above are for items posted to metro locations. If you’re sending to outside a metro area, we recommend posting even earlier.

Christmas dispatch

We ship orders Monday to Friday.

Orders placed between Friday 22 Dec – Monday 1 Jan (inclusive) will ship from Tuesday 2 January.

Standard dispatch and shipping will resume from Tuesday 2 January, 2024.

Christmas Click & Collect orders

Pick up your order from the Little Acre warehouse in Geebung, on Brisbane’s northside. Pick up is free - simply select ‘Pick up’ at checkout.

Pick up is available Monday to Friday, between 8:00am - 3:30pm.  


Click and Collect will be available until 3:00pm Thursday 21 Dec – order by 12pm Wednesday 20 December.

Orders placed between Thursday 21 Dec – Monday 1 Jan (inclusive) will be available for collection from Tuesday 2 January.

As always, please wait for your confirmation email before coming to collect. Thank you!

Tracking information

Once your order has been shipped, you’ll receive an email with your tracking link so you can stay up to date with where your order is at.

Delivery times

Delivery times are tricky to provide these days. You’ll be able to check your unique delivery estimate provided by Australia Post via the tracking link in your email with the subject “Your order has been shipped!”.

Shipping costs

Orders under $10
Standard Shipping via Australia Post - $14.20
Express Shipping via Australia Post - $18.20

Orders under $45
Standard Shipping via Australia Post - $10.20
Express Shipping via Australia Post - $14.20

Orders $45 and over 
Standard Shipping via Australia Post - flat rate $14.20*
Express Shipping via Australia Post - flat rate $18.20*

(*This does not apply to bulk growing supplies.)

Shipping destinations

Yippee! This product can be shipped Australia-wide. And we currently do not offer international shipping, sorry team!

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