Jammin’ Jars Slot Review

Expert Rating: 5 out of 5
Review by Chris Taylor
Last update 16th February 2022
Review by Chris Taylor
Last update 16th February 2022

The Jammin’ Jars slot is a simple, colourful, collapsing reels game from Push Gaming. Played using an 8 reel, 8 row game engine, winning combinations are created by landing clusters of 5 or more matching symbols. Look out for giant symbols that can drop onto the reels at random and wilds that can increase multipliers. With a Rainbow feature which adds colossal fruit symbols to the grid, there is a Jam Jar Multipliers feature where each consecutive wins increases the multiplier by 1. Then you have the Free Games feature where the multiplier can increase infinitely. With an RTP of 96.83% and max wins of 20,000 x stake per spin, find out more in our Jammin’ Jars review.

Jammin' Jars Max Win
20,000 x bet
Push Gaming
Type of Slot
Grid Slot
Fruity Disco
Cluster Pays
Stakes Range
20p to £100
Bonus Features
Yes (4)
Free Spins/Multiplier
Max Win
20,000 x

Jammin' Jars Demo

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Jammin’ Jars Slot Details & Wager Limits

Reels/Paylines: 8×8 Grid, Cluster Pays

Stakes Range: 20p to £100 per spin

Max Win: 20,000 x stake per spin

The Jammin’ Jars slot takes place on an 8×8 grid and uses a Cluster Pays mechanic. To form a win, you need to land a cluster of 5 or more matching symbols to create a winner. A cluster is defined as 5 or more matching symbols touching vertically and/or horizontally.

After a winning spin, the successful symbols are removed from play and new ones drop in and replace them. A new payout calculation is then made. The collapses continue as long as a new winning combination is created. Helping to create them is the jam jar symbol which is the wild.

If the wild forms part of a winning cluster, it moves to an adjacent position prior to the next symbol collapse. All jam jars on display are held in place when a collapse occurs. The jam jar wilds also come with multipliers. These increase by 1x every time they form part of a winning combination. They drop off the reels when no new winner is landed.

You can play Jammin’ Jars from 20p to £100 per spin which caters to all bankrolls. There is an Autoplay function (located next to the main spin button) where you can choose from 10 to 100 spins. You also have the option to set a loss limit (up to 100 x stake) or a single win limit (again up to 100 x stake). In the Settings area, you can opt for the Turbo Mode function as well as remove all sounds, music and sound effects.

Jammin’ Jars is a very high variance slot. With great risk, there’s normally great rewards. That’s certainly the case here as you can win up to 20,000 x your stake on each spin.

Jammin’ Jars RTP

RTP: 96.83%

The Jammin’ Jars RTP is 96.83% which is impressive. This is very high for an online slot and in line with other Push Gaming slots. In terms of Jammin’ Jars, staking £100 will return £96.83 on average. If you want more games with high return to player rates, check out the best RTP slots in the UK.

Theme – Audio and Design Features – head to the dancefloor

Theme: Fruity Disco

High Value Symbol: Strawberry

Compatibility: Mobile, Tablet, Desktop

Jammin' Jars slot - base game

The design in the Jammin’ Jars slot is bright and bold. With a mirror ball in the backdrop, you’ll first notice the 70s style disco soundtrack playing which is upbeat. The 8×8 grid is set on a dancefloor as you’ll see 6 different fruity symbols.

In order of value are blueberries, plums, apples, raspberries, oranges and strawberries. You need to land a cluster of 5 or more matching symbols to create a winner. With 25 of each symbol possible, the highest value symbol is the strawberry. Here’s what each symbol pays for 25 or more:

Symbol Payouts
jammin-jars-slot-blueberry-symbolBlueberry 25 or more = 10 x stake
jammin-jars-slot-plum-symbolPlum 25 or more = 25 x stake
jammin-jars-slot-apple-symbolApple 25 or more = 25 x stake
jammin-jars-slot-raspberry-symbolRaspberry 25 or more = 37.5 x stake
jammin-jars-slot-orange-symbolOrange 25 or more = 62.5 x stake
jammin-jars-slot-strawberry-symbolStrawberry 25 or more = 100 x stake
jammin-jars-slot-wild-symbolWild Substitutes for all other symbols

The most important symbol is the jam jar wild as these benefit from multipliers. When you get a cascading win, the multipliers increase by 1 every time. There is more information on this below.

Jammin’ Jars Mobile


You can play Jammin’ Jars on desktop, tablet and mobile devices as it uses HTML5 technology. In fact, Push Gaming has been produced with portrait mode in mind. The 8×8 grid works well on smaller screens.

Jammin’ Jars Bonus Features

The Jammin’ Jars slot game benefits from 4 bonus features. You have the randomly activated Rainbow feature where 1 or more giant fruit symbols land to give you a win. The Jam Jar wilds come with multipliers which increase with each win/cascade. If you land 3 of them on the reels, you’ll play the Free Games feature where the multipliers can increase with every collapse.

Rainbow feature


You have the Rainbow feature which can become active following any winless spin. A rainbow drops down onto the reels and delivers a colossal fruit symbol. Any matching symbols adjacent to this colossal symbol also become part of the winning cluster.

Jam Jar Multipliers feature


Lookout for the Jam Jar wild symbol which replaces all symbols. When part of a win, the wild shifts to a random adjacent and vacant position. When a collapse/spin occurs, all Jam Jars are held in position.

Known the Jam Jar Multipliers feature the multiplier begins at 1x. Every subsequent cascade or consecutive win will see the multiplier increase by 1. There’s no limit to how high the multiplier can go.

Free Games feature

Jammin' Jars slot - Free Games feature

Land 3 or more jam jar wilds on the same spin and you’ll trigger the Free Games feature. Here you’ll receive 6 free spins with the possibility of the multiplier increasing with each collapse.

If you had any multipliers in the base game, they are carried over. What makes the free spins stand out is that the multipliers can only increase meaning bigger wins are possible.

Bonus Buy feature

As of October 2021, Push Gaming have introduced a Bonus Buy feature. This allows you to buy your way into the free spins. Look out for the Star icon to use it. 3 or 4 jam jar wilds will set you back 100 or 200 x stake respectively. This option isn’t available in the UK though due to regulations.

Jammin’ Jars Review Summary – cult favourite can deliver 20,000 x stake payouts

Theme & Symbols

Sounds & Music

Bonus Features

RTP (96.83%)

Max Win (20,000 x)


The Jammin’ Jars slot is a relatively simple game. The design is glossy and brash and there’s bouncy backing track playing as you spin. The gameplay is just as straightforward as the design. What you make of Jammin’ Jars will come down to your thoughts on collapsing reels slots.

This game is all about the multipliers in the free spins which can increase infinitely. Get on a roll and you could pocket wins of up to 20,000 times your stake on each spin.

That said, there’s not much in the way of variety but it’s the simplicity, big win potential and high RTP which makes Jammin’ Jars such a lethal fruit cocktail. It’s an all or nothing slot game though so you need patience and luck.

As a result, Jammin Jars’ has achieved cult status and is played regular by slot streamers in the hope of landing the big possible payouts. As a result, Push Gaming has released Jammin’ Jars 2 which has more bonus features and bigger max wins of 50,000 x stake.

Furthermore, other Push Gaming slots like Razor Shark and Fat Rabbit have also received many plaudits.

  • Unique theme + visuals
  • Huge win potential from multipliers
  • The most popular grid slot
  • Highly volatile

Casinos with Jammin’ Jars

As a result of this game becoming a cult favourite, there are many casino sites with Jammin’ Jars. Normally found in the ‘Most Popular’ or ‘Best’ sections at slot sites, it’s there for good reason.

Jammin’ Jars FAQs

What is the Jammin’ Jars RTP?

The Jammin’ Jars RTP is 96.83%. The average is around the 96% mark so this is substantially higher. However, this is a highly volatile offering though so it’s all or nothing in terms of payouts.

What’s the Jammin’ Jars max win?

The maximum payout is 20,000 x your total stake per spin. This is won when you get big multipliers in the base game or free spins. In the latter, the Jam Jar wild multiplier values can only increase which increases your chances of winning big.

Are there any Jammin’ Jars free spins?

Jammin’ Jars has a Free Games feature where you’ll get 6 free spins. However, the multipliers from the base game are carried through with each cascade increasing the multiplier. The good news is that multipliers can only increase which can lead to 20,000 x stake wins on each free spin.

Is there a Jammin’ Jars free play version?

Yes. There’s a Jammin’ Jars demo available here at Online-Slot.co.uk. You can play the popular slot on desktop, mobile or tablet devices that use iOS, Android or Windows technology.